Matt Noyes looks at the next 24 hours here (for a view farther out, see Sunday Evening Essentials on our app homescreen and our website homepage), including some ocean-enhanced snow showers on the Outer Cape that may leave a coating!
National Meteorological Summary:
As we begin the new workweek on Monday, a winter-dominated weather pattern grips much of the nation. The eastern two-thirds of the United States remain under the influence of a broad upper-level trough, ushering Arctic air southward and driving a series of impactful weather systems.
- Great Lakes: Lake-effect snow continues to dominate the region, though with shifting wind patterns, the heaviest accumulations will occur southeast of Lake Erie and Lake Michigan. Localized totals of 1-2 feet are possible through Tuesday morning, especially in favored downwind areas such as the Chautauqua Ridge and northern Indiana. Travel remains hazardous, with poor visibility and snow-covered roads in affected areas.
- Plains to Appalachians: A reinforcing shot of Arctic air spreads light snow across the northern Plains, Midwest, and into the southern Appalachians. Accumulations will generally be modest, but slippery travel is likely as temperatures remain well below freezing. Daytime highs across these areas will run 10-20°F below average.
- Southern U.S.: Scattered showers and thunderstorms begin developing along the Texas Gulf Coast as a weak low-pressure wave forms in the western Gulf of Mexico. Rain will gradually expand inland through Tuesday, with no significant flooding concerns expected.
- Western U.S.: High pressure dominates, resulting in dry and stable conditions. Fog and poor air quality persist in valley locations from California to the Pacific Northwest. Temperatures across the West remain near seasonal averages.
Northeast Weather Story:
Winter weather continues to dominate the Northeast as we move into Monday, with cold air entrenched across the region and lake-effect snow persisting in New York and northern Pennsylvania. This pattern will continue to bring challenges for travel and outdoor activities through midweek.
- Today (Monday): High pressure gradually builds from the west, bringing mainly dry conditions to much of New England and eastern New York. However, lake-effect snow bands will continue to impact areas downwind of Lake Ontario and Lake Erie, particularly the Tug Hill Plateau and western Adirondacks. Snow totals in these areas could reach an additional 2-6 inches by Monday evening. Highs will remain cold, ranging from the mid-20s across the Adirondacks to the mid-30s along the southern New England coast.
- Tonight: Skies will partially clear across New England, with overnight lows plunging into the teens and low 20s for most areas. Snow showers linger in western New York and the Catskills, where another inch or two of snow is possible. Gusty northwest winds will make it feel even colder, with wind chills dipping into the single digits in northern and higher elevation areas.
- Tuesday: The quiet weather persists for much of the day, with continued lake-effect snow focused on western New York and the Mohawk Valley. A weak system approaching from the west may bring light snow to the Adirondacks and Catskills late in the day. Highs remain below normal, in the upper 20s to mid-30s, with partly sunny skies elsewhere in the region.
- Midweek Outlook: A clipper system approaches late Wednesday, bringing a widespread light snowfall to the region overnight into Thursday. Interior areas and higher elevations could see 1-4 inches, with locally higher amounts in the Adirondacks and Green Mountains. Coastal areas may see a mix of rain and snow. Following the system, strong northwest winds will usher in an Arctic airmass, with highs struggling to reach the freezing mark by Friday.
